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Simulation of a novel bridge MEMS-PZT energy harvester for tire pressure system
RISE, Swedish ICT, Acreo.
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2014 (English)In: Journal of Physics: Conference Series, 2014, no 1Conference paper, Published paper (Refereed)
Abstract [en]

Self-powering is becoming an important issue for autonomous sensor systems. By having an on-the-go power source the life span increases in comparison to a limited battery source. In this paper, simulation of an innovative design for a piezoelectric energy harvester for Tire Pressure Measurement System (TPMS) is presented. The MEMS-based thin-film PZT harvester structure is in the form of a bridge with a big central seismic mass and multiple electrodes. This design takes the advantage of the S-profile bending and a short beam length to concentrate the piezoelectric effect in a small segment along the beam and maximize the power output for a given displacement. From simulation in Comsol Multiphysics, the 9mm × 5mm bridge, seismic mass of 8.7mg and resonance frequency of 615Hz, generates 1 μW by mechanical pulses excitation equivalent to driving at 60 km/h (roughly 180G).

Place, publisher, year, edition, pages
2014. no 1
Keywords [en]
Energy harvesting, Nanotechnology, Piezoelectricity, Seismology, Autonomous sensors, Comsol multiphysics, Energy Harvester, Innovative design, Multiple electrodes, Piezoelectric energy harvesters, Pulses excitation, Resonance frequencies, Energy conversion
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:ri:diva-35495DOI: 10.1088/1742-6596/557/1/012041Scopus ID: 2-s2.0-84915747730OAI: oai:DiVA.org:ri-35495DiVA, id: diva2:1263129
Conference
14th International Conference on Micro- and Nano-Technology for Power Generation and Energy Conversion Applications, PowerMEMS 2014, 18 November 2014 through 21 November 2014
Available from: 2018-11-14 Created: 2018-11-14 Last updated: 2018-11-14Bibliographically approved

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  • apa
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